Key Features

Design Options

The AS-25 slimline sliding patio door is available in a range of RAL colours and finishes, including dual-colour options. With so many options available, you’re bound to find the perfect fit for your project.

Highly Secure

The AS-25 sliding patio door comes fully equipped with a multi-point locking system and quality hardware to ensure protection from any unwanted visitors. Our patio doors are also PAS24 compliant for complete peace of mind.

Exceptional Thermal Performance

The aluminium profile used in the AS-25 slimline sliding patio door is designed to provide excellent heat retention. Capable of achieving incredibly low U-values and fantastic energy ratings, our patio doors are an energy-efficient option.

Long Lasting Durability

Unlike other materials, such as wood and uPVC, aluminium does not warp, rot or corrode, making it ideal for external use.

Low Maintenance

The AS-25 sliding patio door requires minimal maintenance. It only needs a simple wipe down every so often to keep it in pristine condition.

Simple Installation

Suitable for a variety of uses including residential, retail/commercial and hospitality, the AS-25 sliding patio door is available in flat pack for ease of assembly on site.

Smarts Three Panel Sliding Doors
  • Finishes & Materials
  • Thermal Efficiency
  • Accessories
  • Safety & Security
  • Technical Downloads

Finishes & Materials

RAL Colour Picker

Aluminium & Materials

The AS-25 slimline sliding patio door uses only high quality aluminium. Renowned for its incredible strength and weather resistance capabilities, our aluminium products are available in an endless array of product designs and specifications.

Thermal Efficiency

Exceptional Thermal Performance

The AS-25 sliding patio doors have been tested to ensure that it meets current building regulations for thermal performance. Our aluminium sliding patio doors:

  • Prevents heat loss
  • Protects against condensation
  • Improves energy efficiency
  • Promotes sustainability


Door Handles

Our AS-25 sliding patio doors are available with a selection of quality hardware and accessories. With our slimline sliding patio doors, you can offer your customers the best in bespoke customisation.

Safety & Security

Our AS-25 sliding patio door is designed with safety and security in mind. Alongside our anti-finger trap gaskets, our AS-25 patio doors provides the following protection:

  • Multipoint locking systems
  • Strong frames
  • Robust hinges
  • Heavy duty shoot bolts
  • Magnetic door keeps

Technical Downloads

Click on the links to download all the essential technical product documentation. Visit our download page to browse the technical details of all of our aluminium doors and windows.

AS-25 Minimal Sliding System

Premium materials and quality service

All Aston aluminium windows and doors are designed and manufactured at our state-of-the-art factory. We only use premium quality aluminium which is incredibly strong, weather-resistant, and thermally efficient. Utilising the latest cutting-edge machinery, we can fabricate a bespoke range of aluminium windows and doors for your next installation project.

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Boost your business by becoming an Aston installer today. Gain access to all our premium aluminium products and offer your customers a smooth and efficient installation service on bespoke aluminium doors and windows.

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